Creating Nodes using Kangaroo relaxation

Hey guys,

I'm trying to make a tree-like canopy for my project and now has come to the fabricating phase. I'm creating a node that could hold the 'sticks' together in the intersections. I manage to do it using Exoskeleton but would like to push it further using kangaroo relaxation method to prevent the 'sticks' from touching each other in the center of the node. However, the result wasn't what i expected. Anyone knows what's the problem ?